Synthesis of p,p ′-Phenolphthaleinbis(trimellitic) Dianhydride
作者:
Engelina Porowska,
Maria Tokarzewska,
期刊:
Journal of Macromolecular Science: Part A - Chemistry
(Taylor Available online 1979)
卷期:
Volume 13,
issue 7
页码: 899-908
ISSN:0022-233X
年代: 1979
DOI:10.1080/00222337908066616
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
p,p′-Phenolphthalein-bis(trimellitic) dianhydride was obtained by the reaction of diacetyloxyphenolphthalein with trimellitic anhydride. The structure of the new compound was proved by elementary analysis, infrared spectroscopy, and acid value determination. The course of acidolysis reaction was examined in the temperature range of 240–280°C. The compound obtained is a powder having a melting point of 135–138° C, has high thermal stability, and is easily soluble in many organic solvents and low-molecular epoxy resins. Application of p,p′-phenolphthalein-bis(trimellitic) dianhydride in synthesis of soluble polyester-imides and as a hardening agent for low molecular weight epoxy resins is proposed.
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